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Proceedings of XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2016)
The production of jets in polarized proton collisions at STAR is dominated by quark-gluon and gluon-gluon scattering processes. The dijet longitudinal double-spin asymmetry (A LL ) is sensitive to the helicity distributions and may be used to extract information about the gluon helicity contribution ∆g(x, Q 2 ) to the spin of the proton. Previous STAR jet measurements at √ s = 200 GeV show evidence of polarized gluons for gluon momentum fractions above 0.05. The measurement of dijet A LL at √ sdoi:10.22323/1.265.0231 fatcat:3zvmrdpbrfhvdalb5ueqfjlgce